WINNIPEG -- A judge has found a Winnipeg man guilty of attempting to murder his former wife and two lawyers when he sent them letter bombs.

Guido Amsel was arrested after three explosive packages were found in July 2015.

Maria Mitousis, a lawyer who had represented Amsel's ex-wife, Iris, in a financial dispute, lost her right hand when one of the bombs went off in her office.

Judge Tracey Lord says she is satisfied that DNA evidence found at the crime scenes belonged to Amsel and that he was the one who sent the explosive devices.

She says she also believes he planted a device that went off outside Iris Amsel's home in December 2013.

Lord rejected Guido Amsel's testimony in his own defence and said his explanations that he was being framed weren't credible.

The judge says his motive was to punish his wife and the lawyers for their role in a contentious lawsuit he had filed, but then dropped shortly before the letter bombs.